Ventilator



F. J. RENNERT VENTILATOR March 5, 1929.

Filed March 28, 1928 INVENTOR Fred JTRenneri;

WITNESSES Mrl ATTORNEY v v Patented Mar. 5, 1929.

FRED J. RENNERT, OF QUEENS VILLAGE, NEW YORK.

VENTILATOR.

The present invention is concerned with a ventilator which may have a wide range of utility, but which is primarily intended to be attached to the inner side of an ordinary sliding window sash.

One objectof the invention is to provide a ventilator so constructed that it may be readily attached to, or detached from a sash, and so designed that there is no necessity for altering or in any way marring the sash frame, or the molding strip.

Another object of the invention is to provide a ventilator, which, when the sash is closed, is disposed within the window and rests on the sill. When, however, the sash is lifted, the ventilator moves outwardly as an incident of the lifting of the sash and pro jects over the window sills, so that all rain water driving against it, will be deflected outwardly, and will not come in contact with the sill, or enter the room.

Another object of the invention is to pro vide a ventilator attached to the inner side of a window sash, and operative to serve its ordinary ventilatingfunction when the sash is partially raised. The ventilator is so designed and so secured to the sash, however, that further elevating of the sash will serve to carry the ventilator upwardly with it, so that the ventilator will offer no obstruction at the lower portion of the window frame.

Other and more general objects of the in-- vention are to provide ventilator of simple. practical construction, which will be rugged, durable and efficient in use, and well suited to the requirements of economical manufacture and convenient installation.

With the above noted and other objects in view, the invention consists in certain novel features of construction and combinations and arrangements of parts as will be more fully hereinafter set forth and pointed out in the claims. The invention may be more fully understood from the following description in connection with the accompanying drawings, wherein- Fig. 1 is a fragmentary vertical sectiona view through a sash and window frame show-- ing one of my improved ventilators in position with the sash closed.

Fig. 2 is a similar view showing the position assumed by the ventilator when the sash has been partially elevated and just before the ventilator starts to travel upwardly with the sash.

Fig. 8 is a fragmentary sectional plan view on the line 3--3 of Fig. 1 v

Fig. 4 is a perspective view taken from the inside of the window and showing the ventilator in its normal inoperative position with the sash closed.

Fig. 5 is a view similar to Fig. 1, but illuse trating a slight modification.

In the drawings I have used the reference numeral to designate a window frame equipped with the usual parting strips 11 and molding strips 12 defining a guiding channel in which the edges of a sash 30 are verticalh' slidable. Secured to each side of the sash is a ventilator guide member comprising a generally V-shaped plate 13 having flanges 1a and 15 at its edges. The flange 141 is screwed or otherwise secured as at 16 to the window frame, and the flange 16 is disposed in inclined position, being spaced well away from the sash at its upper end, and inclining gradually inwardly toward the sash at its lower end. Upon the two guide plates 13, a ventilator constructed in accordance with the pres-- ent invention may be conveniently detachably mounted. Such a ventilator includes a body or plate portion 17 having its side. edges turned forwardly to define flanges 18; these flanges near their upper ends presenting lips 19 parallel to the plate 17 which are engageable with the sash as the sash is raised and the ventilator drawn outwardly as seen in Fig. 2.

Any suitable means is utilized for slidably joining the flanges 18 and the outer flanges 1b of the plates 13. As illustrated, metallic strips are welded or otherwise secured upon the outer faces of the flanges 18 and these strips are bent longitudinally to define channel portions 21 receiving the. flanges 15 and interlocking therewith. The plate 17 at its low-er end is turned forwardly, or a forwardly projecting base flange 22 is secured to the bottom of the plate 17 in any desired man ner. Sealing devices such as the metal strips 23 with their outwardly turned flan es 24' may be secured upon the outer faces of the flanges 18 attached to the channel-forming strips 20,- or otherwise anchored to the ventilator structure. Strips 24 are preferably equipped with flexible sealing means such as the projecting strips 25 of rubber or the like, which contact with the inner faces of the molding strips 12 as the ventilator is moved from the position of Fig. 1 t0 the position of Fig. 2.

The manner of operation of the device is as follows. Flange 22 normally rests upon the window sill as shown in Fig. 1 when the sash is closed. As the sash with its fixed guide pieces 13 is elevated, the slidable connection between flange 15 and channel 20 serves to draw the ventilator outwardly, moving it to the position of Fig. 2, in which position the flange 22 projects over the window sill and will tend to spill rainwater outwardly. .In this position also, the sealing strips'25 are tightly engaged with the inner faces of the molding strips 12 and a substantially watertight structure is had.

As the window reaches the position of Fig. 2, the flanges or lips 19 abut the lower end of the stile of the sash 30 and preventfurther bodily movement of the ventilator in an outward direction. Consequently, upon further elevation of the sash 30, the ventilator is carried upwardly with the sash, and the lower portion of the Window frame is devoid of all obstructions.

In Fig. 5 I have illustrated a slight modification of the construction, in which a vertical strip 13 is attached to each side of the sash and slidably connected to a ventilator 17. Here, as the sash moves upwardly, the ventilator is not drawn outwardly, but after the sash has reached a predetermined height, an car 27 on the lower end of the strip 13 engages a lug 28 on the ventilator and carries it bodily upwardly with the sash. With this form of the device, there is nothing more than a lost motion connection between the ventilator and sash, so that the former is picked up and carried with'the latter after the sash has been elevated to a predetermined extent.

It will be seen, particularly from Fig. 3, that there is nothing to prevent the ventilator from being bodily lifted off the guide rails 15 at any time. In a room where there are several windows, each equipped with guide rails,

a single ventilator may be shifted from one window to another as occasion requires. There are never any parts to be attached to the window frame, or the molding strips, and consequently the frame and molding strips are never marred by attaching devices or guide devices.

' A couple of screws may be conveniently used to secure the members 13 or 13 in position, so that the operation of attaching the ventilator guides is a very simple and expeditious one.

Obviously, the particular manner of slidably connecting the ventilators and guides is subject to a wide range of structural variations. In fact, numerous changes and alterations might be made in the general form and arrangement of the parts described without departing from the invention. Hence I do not wish to limit myself to the details set forth, but shall consider myself at liberty to make'such changes and alterations as fairly fall within the spirit and scope of the appended claims.

I claim:

1. A ventilator including a body and wing flanges at the lateral edges thereof, a pair of guide rails adapted to be secured to a sash, said rails and wings being interconnected for a limited relative sliding movement, and means whereby the ventilator is movable bodily with the rails after the limit of such reltive sliding movement is reached.

2. The combination with a sash and spaced guide rails secured thereto, of a ventilator slidably connected to the rails, and means whereby the ventilator is moved bodily toward the plane of the sash as the sash is elevated, said means comprising inclined means on the rails and ventilator providing said sliding connection. 1

8. The combination with a sash and spaced guide rails secured thereto, of a ventilator slidably connected to the rails, means whereby the ventilator is moved bodily toward the plane of the sash as the sash is elevated, and means whereby the ventilator is bodily lifted with the sash after the sash has been elevated to a predetermined extent.

41. The combination with a window frame, sill, and sliding sash, of a ventilator normally resting on the window sill and slidably connected to the sash, the sliding connection being such, that, as the sash is elevated, the Ventilator is moved across the sill to protect the sill from rainwater.

5. The combination with a window frame,

sill, and sliding sash, of a ventilator normally resting on the window sill and slidably connected to the sash, the sliding connection being such, that, as the sash is elevated, the ventilator is moved across the sill to protect the sill from rainwater, and sealing means carried by the lateral edges of the ventilator engageable with the sides of the window frame as the ventilator is moved across the sill.

6. The combination with a sliding window sash, of a ventilator secured to said sash and adapted to normally rest on the window sill, and means providing a lost motion connection between the sash and ventilator, so that the sash may be elevated through a predetermined distance before the ventilator is picked up and carried with the sash, said lost motion connection including inclined slidably connected members on the sash and ventilator tending to move the sash bodily across the sill as the sash is lifted and before the ventilator is picked up.

Signed at Long Island City in the county of Queens and State of New Yorkthis 26th day of March, A. D. 1928.

FRED J. RENNERT. 

